A comedy club owner who is a witness in the Michael Jackson (search) molestation case held a news conference Wednesday to accuse the singer's defense team of harassing him.

As soon as he wrapped up his remarks, he was served with a fresh defense subpoena.

Jamie Masada (search), who owns the Laugh Factory in Hollywood, introduced Jackson to the boy who is accusing the pop star of molestation. The boy had participated in Masada's comedy camp for underprivileged children and was battling cancer when Jackson met him at Masada's urging.

Standing on stage at his club, Masada accused Jackson attorney Brian Oxman (search) of "unethical" behavior by having investigators call him and visit the homes of several comedians.

"He's harassing all of my comics who have been doing my comedy camp," Masada said.

Masada's employees handed out a copy of a Dec. 28 letter in which Oxman told Masada the defense would seek a court order against him if he ignored a subpoena for records and a request that he appear in court on Jan. 31, the trial's scheduled start date.

An unidentified man then handed another summons to Masada to appear on Jan. 31 and immediately left the club.

Oxman said he could not comment because of a gag order in the case.

During the camp, comedians including Chris Tucker, George Lopez and others help children create standup routines. Masada said a private investigator hired by the Jackson team questioned comedians about the camp and whether they had met the accuser.

Masada declined to name the comedians, except for Suli McCullough, who joined him at the news conference. McCullough said the investigator had questioned him about the camp "almost in an accusatory kind of fashion."

Masada has given money and public support to the boy's family since the molestation allegation against Jackson broke in November 2003. Jackson has pleaded not guilty.